Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
342 FZUS54 KLIX 041731 CWFLIX Coastal Waters Forecast National Weather Service New Orleans LA 1231 PM CDT Sat Oct 4 2025 Pascagoula to Atchafalaya River out to 60 NM Seas are provided as a range of the average height of the highest 1/3 of the waves...along with the occasional height of the average highest 10 percent of the waves. GMZ500-GMZ501-050600- 1231 PM CDT Sat Oct 4 2025 .SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM... A broad area of low pressure over the central Gulf and a high pressure system over the eastern seaboard will keep a persistent easterly flow of 15 to 25 knots in place across all of the waters through tomorrow. These winds will also have a pretty long fetch across the eastern Gulf waters, and this will support higher seas of up to 10 feet in the open Gulf waters due to a combination of wind waves and swell. Small craft advisories are in effect through Sunday evening due to these hazardous conditions. The high will start to become more dominant over the waters on Monday and Tuesday, and this will allow the easterly winds to relax a bit to between 10 and 15 knots. Seas will also decrease to 2 to 4 feet as the winds relax. This brief respite in rougher conditions will end on Wednesday and Thursday as another low pressure system moves through the Gulf. Easterly winds will increase back to near advisory levels in the offshore waters and seas will increase to 4 to 6 feet. $$ GMZ530-050600- Lake Pontchartrain and Lake Maurepas- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...East winds 15 to 20 knots with gusts up to 25 knots. Waves around 4 feet. A chance of showers. .TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Waves 2 to 4 feet. A chance of showers. .SUNDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Waves 3 to 4 feet. Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Waves 2 to 3 feet. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Waves around 2 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. A chance of showers in the evening. .TUESDAY...East winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers in the evening. .WEDNESDAY...Northeast winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ534-050600- Lake Borgne- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...East winds 20 to 25 knots with gusts up to 30 knots. Waves 4 to 5 feet. A chance of showers. .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Waves 3 to 4 feet. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Waves 3 to 4 feet. A chance of thunderstorms. Showers. .SUNDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Waves 2 to 4 feet. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .MONDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Waves around 2 feet. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .TUESDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers in the evening. .WEDNESDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ532-050600- Mississippi Sound- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...East winds 20 to 25 knots with gusts up to 30 knots. Waves around 4 feet. A chance of showers. .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Waves 3 to 4 feet. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. .SUNDAY...East winds 20 to 25 knots with gusts up to 30 knots. Waves around 4 feet. A chance of thunderstorms. Showers. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Waves 2 to 4 feet. Showers likely. A chance of thunderstorms, mainly in the evening. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Waves 2 to 3 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .TUESDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms in the evening. .WEDNESDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers. A slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds around 10 knots, becoming northeast after midnight. Waves 2 to 3 feet. Winds and waves higher in and near thunderstorms. $$ GMZ536-538-050600- Chandeleur Sound-Breton Sound- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...East winds 25 to 30 knots. Waves 5 to 6 feet. Showers likely. A chance of thunderstorms early, then a slight chance of thunderstorms late. .TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Waves 4 to 6 feet. Showers likely with a slight chance of thunderstorms in the evening, then showers with a chance of thunderstorms after midnight. .SUNDAY...East winds 20 to 25 knots with gusts up to 30 knots. Waves 4 to 5 feet. Showers with a chance of thunderstorms. .SUNDAY NIGHT...East winds 20 to 25 knots, becoming southeast 15 to 20 knots after midnight. Waves 3 to 5 feet. Showers likely with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Waves 2 to 4 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .TUESDAY...East winds 10 to 15 knots. Waves 2 to 4 feet. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUESDAY NIGHT...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms in the evening. .WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Waves 3 to 4 feet. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ555-557-050600- Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm- Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...East winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: East 9 feet at 7 seconds. Showers with a chance of thunderstorms. .TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at 7 seconds. Showers with a chance of thunderstorms. .SUNDAY...Southeast winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds. Showers with a chance of thunderstorms. .SUNDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. Showers likely. A chance of thunderstorms, mainly in the evening. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. A slight chance of showers. .WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. A slight chance of showers in the evening. Winds and seas higher in and near thunderstorms. $$ GMZ550-552-050600- Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm- Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...East winds 20 to 25 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Showers with a chance of thunderstorms. .TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Showers with a chance of thunderstorms. .SUNDAY...Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. Showers with a chance of thunderstorms in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of thunderstorms in the evening. A chance of showers. .MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...East winds around 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 6 seconds and southeast 1 foot at 3 seconds. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. .TUESDAY...East winds around 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 1 foot at 2 seconds. A slight chance of showers. .WEDNESDAY...Northeast winds 10 to 15 knots, becoming east 15 to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ575-577-050600- Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm- Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...East winds around 25 knots with gusts up to 30 knots. Seas 8 to 9 feet, occasionally to 11 feet. Wave Detail: East 9 feet at 7 seconds. A chance of thunderstorms. Showers. .TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at 7 seconds. Showers with a chance of thunderstorms. .SUNDAY...Southeast winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds. Showers with a chance of thunderstorms in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. A slight chance of thunderstorms. Showers likely, mainly in the evening. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. A chance of showers, mainly in the evening. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. A slight chance of thunderstorms in the morning. A chance of showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. A chance of showers, mainly in the evening. Winds and seas higher in and near thunderstorms. $$ GMZ570-572-050600- Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM- Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM- 1231 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...East winds 20 to 25 knots with gusts up to 30 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at 8 seconds. Showers with a chance of thunderstorms. .TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at 8 seconds. Showers with a chance of thunderstorms. .SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds. Showers with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. A chance of showers. .MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of thunderstorms in the morning. A chance of showers. .MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers. .TUESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers, mainly in the evening. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. A chance of showers, mainly in the evening. Winds and seas higher in and near thunderstorms. $$